How Thick Should Osb For Roof

Oriented strand board osb vs plywood family handyman osb roof sheathing panels georgia pacific blue ribbon 8 tips for getting the best out of your oriented strand board osb which way should you install osb on a roof norbord north roofing plywood sizes material options thickness calculations osb oriented strand board common 15 32 in x 4 ft 8 actual.

How thick should osb for roof. This way no worrying about grabbing scraps to fill in small spots and not having the correct thickness. With this thickness any deflection under dead loads only the weight of materials only should prove to be imperceptible. Osb roof decking thickness 7 16 1 2 or 5 8 if were using osb we get 9 16 we dont worry about getting both 7 16 and 9 16 for walls then the roof we just get all of the same. 8d ring shank nails should be used instead.

For the curious 7 16 osb has a span rating of 24 16 and with supports every 24 inches is good for a roof live load of 40 psf pounds per square foot with a 10 psf dead load. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Watch this now to learn how to avoid this same pr. Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones.

The thickness required by josh s. Sheathing should be a minimum of 19 32 inch thick. The typical thickness range for sheathing is 3 8 to 3 4 inch.